23067729 has 24 divisors (see below), whose sum is σ = 35272640. Its totient is φ = 14486688.

The previous prime is 23067719. The next prime is 23067749. The reversal of 23067729 is 92776032.

It is not a de Polignac number, because 23067729 - 2⁵ = 23067697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23067693 and 23067702.

It is not an unprimeable number, because it can be changed into a prime (23067719) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47124 + ... + 47610.

Almost surely, 2^23067729 is an apocalyptic number.

It is an amenable number.

23067729 is a deficient number, since it is larger than the sum of its proper divisors (12204911).

23067729 is a wasteful number, since it uses less digits than its factorization.

23067729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 23067729 is about 4802.8875689527. The cubic root of 23067729 is about 284.6655726389.

The spelling of 23067729 in words is "twenty-three million, sixty-seven thousand, seven hundred twenty-nine".